package com.xywg.iot.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.MessageSource;
import org.springframework.context.MessageSourceAware;
import org.springframework.stereotype.Component;

/**
* @author: wangyifei
* Description:
* Date: 15:56 2018/9/13
*/

@Component
public class ApplicationContextProvider implements ApplicationContextAware,MessageSourceAware {

	  /**
     * 上下文对象实例
     */
    private static ApplicationContext applicationContext;

    private static  MessageSource messageSource;

	
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		ApplicationContextProvider.applicationContext = applicationContext;
	}

	  /**
     * 获取applicationContext
     * @return
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    /**
     * 通过name获取 Bean.
     * @param name
     * @return
     */
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     * @param name
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

    @Override
    public void setMessageSource(MessageSource messageSource) {
        ApplicationContextProvider.messageSource=messageSource;
    }

    public static MessageSource getMessageSource() {
        return messageSource;
    }
}
